Home / 26,487.26-39,729.98-12,439.43

Finding the Fourth Proportional to 26,487.26, 39,729.98 and 12,439.43

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Solution

The fourth proportional to 26,487.26, 39,729.98 and 12,439.43 is: 18,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,487.26 : 39,729.98 = 12,439.43 : x
  2. Step 2: Convert to fraction form
    26,487.26/39,729.98 = 12,439.43/x
  3. Step 3: Cross multiply
    26,487.26x = 39,729.98 × 12,439.43
  4. Step 4: Simplify right side
    26,487.26x = 494,218,137.56
  5. Step 5: Solve for x
    x = 494,218,137.56/26,487.26
  6. Step 6: Final answer
    x = 18,658.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.